2205 duplex stainless steel (DSS) possesses favorable mechanical property and good corrosion resistance at the same time, and has been a new material and applied widely in petroleum, natural gas, ocean and chemistry i...2205 duplex stainless steel (DSS) possesses favorable mechanical property and good corrosion resistance at the same time, and has been a new material and applied widely in petroleum, natural gas, ocean and chemistry industry etc from 1980’s in some advanced countries and from 1990’s in China. One natural gas headstream project possesses abundant natural gas and provides 80% of total quantity gas for West-East Pipeline Project. The project includes a 13 km length pipeline and a gas treatment plant that purify gas about 12×10~9 m^3 every year. The Cl^- concentration in the water separated from gas is about 10%, and so the corrosion of medium is very violent to the pipeline. 2205 DSS material has been applied successfully to the project in 2004. This is the first time of such a mass of DSS material application in a project in China. The characteristic of 2205 DSS and application in natural gas pipeline project has been introduced in this paper.展开更多
文章概述了克拉2气田中央处理厂U N S S32205双相不锈钢管道系统的基本情况。介绍了U N S S32205双相不锈钢的化学性能和物理性能,在管道施工过程中的特点和难点,相关的焊接工艺试验和焊接工艺评定以及施焊过程中的技术措施;提出了在实...文章概述了克拉2气田中央处理厂U N S S32205双相不锈钢管道系统的基本情况。介绍了U N S S32205双相不锈钢的化学性能和物理性能,在管道施工过程中的特点和难点,相关的焊接工艺试验和焊接工艺评定以及施焊过程中的技术措施;提出了在实际操作中的注意事项。实践证明,在U N S S32205双相不锈钢管道系统的焊接过程中,严格控制焊接管道内的氧气含量和焊接线能量是保证焊接质量的关键环节。展开更多
文摘2205 duplex stainless steel (DSS) possesses favorable mechanical property and good corrosion resistance at the same time, and has been a new material and applied widely in petroleum, natural gas, ocean and chemistry industry etc from 1980’s in some advanced countries and from 1990’s in China. One natural gas headstream project possesses abundant natural gas and provides 80% of total quantity gas for West-East Pipeline Project. The project includes a 13 km length pipeline and a gas treatment plant that purify gas about 12×10~9 m^3 every year. The Cl^- concentration in the water separated from gas is about 10%, and so the corrosion of medium is very violent to the pipeline. 2205 DSS material has been applied successfully to the project in 2004. This is the first time of such a mass of DSS material application in a project in China. The characteristic of 2205 DSS and application in natural gas pipeline project has been introduced in this paper.
文摘文章概述了克拉2气田中央处理厂U N S S32205双相不锈钢管道系统的基本情况。介绍了U N S S32205双相不锈钢的化学性能和物理性能,在管道施工过程中的特点和难点,相关的焊接工艺试验和焊接工艺评定以及施焊过程中的技术措施;提出了在实际操作中的注意事项。实践证明,在U N S S32205双相不锈钢管道系统的焊接过程中,严格控制焊接管道内的氧气含量和焊接线能量是保证焊接质量的关键环节。